Răspunsuri

2014-10-23T20:40:52+03:00
Ms1=20g
c1=8%
ms2=40g
c2=10%
md1=?
md2=?
c1=md1*100/ms1 si avem 8=md1*100/20 => md=8*20/100=160/100=16/10=8/5=1,6
c2=md2*100/ms2       10=md2*100/40 => md2=10*40/100=400/100=4
1,6+4=5,6g sare.    nu stiu sigur daca e totul bine , daca mai gasesti grseli le poti corecta si tu .
24 4 24